The following sites etc.
- Abergwaun.com - The definitive guide to Fishguard, with all the latest news from the port
- Anglesey Info - A complete guide to all things Anglesey, including Holyhead's maritime history
- Apostolis's Maritime Photos - Pictures of Greek and international vessels from Merchant Officer Apostolos Kaknis
- Caergybi.com - A site dedicated to, about and for Holyhead.
- Captain John MacGregor Skinner - a former Holyhead pilot launch now owned by Richard Bufton.
- Caesarea-Sarnia - a nostalgia site for the former Weymouth - Channel Islands mailboats Caesarea and Sarnia.
- Dover Ferry Photos - Superb site from Dover ferry enthusiast Raymond Goodfellow.
- Dun Laoghaire Harbour - 57 miles due west of Holyhead.
- Fakta om Fartyg - The place for ferry facts.
- Farewell to the China Boats - A fine tribute to Blue Funnel Line ships, also known as the China Boats or the Welsh Navy.
- Ferry Fantastic - An enthusiasts' site that seeks to share an interest in ferries through photographs and articles.
- Ferry Publications - Europe's leading publisher in this specialist field producing a range of publications covering all aspects of the ever-changing ferry scene in the North Sea, English Channel, Solent, Irish Sea, Scottish, Scandinavian and Mediterranean spheres of operations.
- Gordon Hislip Photography - Specialises in photography which records shipping operations in the Irish Sea, with a keen focus on the ferry and ro-ro sector.
- HHV Ferry - A tribute to the Sealink ferries Hengist, Horsa, Vortigern.
- Holyhead Breakwater Railway Company - Exciting plans for the UK's longest breakwater.
- Holyhead Coastguard - Keeping safe the waters of North Wales from the Dee estuary in the North East to Friog on the Cardigan Bay coast in the West.
- Holyhead Port - All you need to know about the port of Holyhead.
- Holyhead Port Pictures - Holyhead in Camera!
- Irish Sea Shipping - News and Views from Irish waters.
- Irish Ships - Details of ships and shipping related to Ireland.
- Just Ferries! - A superb web site from Carsten Watsack with his collection of videos and photos
- Maritime Photographic - The site of award winning photographer Gary Davies, who has specialised in professional maritime related photography since 1991.
- My Ships - Stefano's ship photos.
- National Steam Preservation - Forum
- PictureShips - A culmination of a number of collections brought together on one site as the Don Smith Collection.
- Rhiw.com - Celebrating the men, ships and ports of the Llyn Peninsula and the beautiful village of Rhiw.
- Sea the Ships - Forum
- Ships of the Mersey - a comprehensive record of visitors to the River Mersey
- Ships Photos - Worldwide Ship's Images by Federico Bolognini.
- Vessels at Holyhead - Created to observe a busy port
- Wicklow Maritime - Shipping and marine activity at the port of Wicklow.